National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

A Few Clouds

24°F

-4°C

Humidity 35%
Wind Speed NW 14 G 23 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 4 Dec 10:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Scattered flurries after 4am. Increasing clouds, with a low around 16. Northwest wind 8 to 18 mph, with gusts as high as 38 mph.

    Low: 16 °F

    Scattered
    Flurries

  • Friday

    Friday: Scattered flurries before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 33. Northwest wind around 6 mph becoming southwest in the afternoon.

    High: 33 °F

    Scattered
    Flurries

  • Friday Night

    Friday Night: A slight chance of snow between 3am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 27. Light south wind. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain, mainly after 8am. Mostly cloudy, with a high near 45. South wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 9pm. Partly cloudy, with a low around 31. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42. North wind 6 to 8 mph.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 4am. Mostly cloudy, with a low around 26. West wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before 9am, then a chance of rain between 9am and noon. Partly sunny, with a high near 38. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 38 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 20. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered flurries after 4am. Increasing clouds, with a low around 16. Northwest wind 8 to 18 mph, with gusts as high as 38 mph.
Friday
Scattered flurries before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 33. Northwest wind around 6 mph becoming southwest in the afternoon.
Friday Night
A slight chance of snow between 3am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 27. Light south wind. Chance of precipitation is 20%.
Saturday
A chance of rain, mainly after 8am. Mostly cloudy, with a high near 45. South wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of rain before 9pm. Partly cloudy, with a low around 31. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 42. North wind 6 to 8 mph.
Sunday Night
A chance of snow after 4am. Mostly cloudy, with a low around 26. West wind 3 to 7 mph. Chance of precipitation is 30%.
Monday
A chance of snow before 9am, then a chance of rain between 9am and noon. Partly sunny, with a high near 38. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 20. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 42. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Southwest wind around 8 mph. Chance of precipitation is 60%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 46. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Thursday
Rain likely. Mostly cloudy, with a high near 46. Southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
9:56 pm EST Dec 4, 2025
Forecast Valid:
11pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation